Secuno
ENNL
Book demo

CVE-2026-27575

Vikunja vulnerability

9.1 CRITICALPublic exploitEPSS 0.45%
  1. Published25 Feb 2026

Description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to set weak passwords (e.g., 1234, password) without enforcing minimum strength requirements. Additionally, active sessions remain valid after a user changes their password. An attacker who compromises an account (via brute-force or credential stuffing) can maintain persistent access even after the victim resets their password. Version 2.0.0 contains a fix.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Vikunja< 2.0.0

Remediation

Fixed in
Vikunja≥ 2.0.0

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-783579.1
Previously issued authentication tokens are not immediately invalidated when an OTRS…
CVE-2026-1040848.8
SmarterMail before build 9777 contains a privilege escalation vulnerability where JWT…
CVE-2026-1032838.1
Ghost versions 6.20.0 before 6.57.1 contain a session handling vulnerability that…
CVE-2026-888058.1
Incorrect credential cleaning on logout could be used by remote attackers to keep…
CVE-2026-825668.8
The Botslab G980H dash camera firmware contains a session management vulnerability in…
CVE-2026-793139.8
webpy web.py 0.76 is vulnerable to Insufficient Session Expiration. The application's…

Frequently asked

Is CVE-2026-27575 being actively exploited?

CVE-2026-27575 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.45%.

How severe is CVE-2026-27575?

CVE-2026-27575 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.45% probability of exploitation.

Which products are affected by CVE-2026-27575?

Affected products include Vikunja.

How do I fix CVE-2026-27575?

Upgrade affected software to a fixed version, for example Vikunja 2.0.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-27575 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.